BMW E60 E90 E91 F10 Fuel Flap Cover Buffer Stopper Ejector 8228939

Visual condition of the part 

The product shows signs of use visible in the photos. 

BMW E60 E90 E91 F10 Fuel Flap Cover Buffer Stopper Ejector is an original component from the Fuel filler flaps and accessories group, designed to stabilize and limit the movement of the fuel filler flap in selected BMW models. A properly selected buffer ensures repeatable closing, correct positioning of the flap, and protects bodywork components from excessive mechanical stress.

Specifications and technical data

• SKU: 8228939
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8228939
• Substitutable numbers: 8228939, 51178228939
• Category: Fuel Flaps & Components

Purpose and technical function

The fuel filler flap buffer in BMW E60, E90, E91, and F10 series models is responsible for the controlled range of motion of the flap and cushioning its movement during opening and closing. This component:

• stabilizes the fuel filler flap in the rest position,
• limits unwanted vibrations and play within the filler recess,
• reduces the risk of damage to the paintwork and the flap hinge,
• supports the tightness of the fuel filler area by properly pressing the flap.

By maintaining factory geometry, the buffer works with the original flap mechanism, which translates into predictable behavior during daily vehicle operation.

Compatibility and fitment

The presented buffer is a component dedicated to selected BMW models from the E60, E90, E91, and F10 series, which means that its shape, mounting points, and range of motion are adapted to the factory design solutions of these bodies. Original BMW branding ensures compliance with factory tolerances and predictable behavior over a long period of use.

For certainty of selection, it is recommended to verify the part by OEM number or by the vehicle's VIN in the manufacturer's catalog or with a specialist, which minimizes the risk of installing an incorrect component in the fuel filler area.

Performance characteristics and installation

The fuel filler flap buffer operates in a demanding environment – it is exposed to temperature changes, moisture, and contaminants resulting from vehicle operation. Using an original component allows you to maintain:

• repeatable flap closing force,
• correct movement guidance along the hinge axis,
• reduction of knocking and play in the fuel filler area.

Used condition means that the component comes from dismantling, which in practice allows for an economical replacement while maintaining factory specifications. Before installation, a standard visual inspection and cleaning of the mounting socket are recommended to ensure proper positioning and operation of the buffer.

Benefits of using an original buffer

Using a dedicated fuel filler flap buffer in a BMW brings a number of practical operational benefits:

• Consistency with the factory design – maintaining the original operating characteristics of the fuel filler flap.
• Reduction of wear on the hinge and mounting elements thanks to movement cushioning.
• Aesthetics and ergonomics – the flap closes in a predictable way, without excessive play or noise.
• Economical repair – the possibility of restoring the correct operation of the flap without interfering with larger body components.

Technical support and additional materials

To better understand the role of the fuel filler area in the entire fuel system, it is worth reading a guide on diagnostics and operation, such as Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, where, among other things, the selection of components by OEM numbers and the principles of proper fuel system maintenance are discussed.

If you are planning a comprehensive repair or upgrade of the fuel filler area in your BMW and need other components from the same group, such as flaps, hinges, or seals, check the available parts in the BMW Fuel filler flaps and accessories category.